as a treat
self-rewarding
the one-line answer
A small indulgence, usually self-given.
As a treat comes from the Treats meme. Something you give yourself because you deserve it. Small luxuries that feel slightly guilty.
mainstream
Your coworker might use this word.
01 / in the wild
hear it move.
self-care
bought myself flowers as a treat. I earned it.
I bought myself something small and nice because I deserved it.